1AEEK00785-Chevrolet GMC Cadillac Hummer Engine Knock Sensor & Harness Kit



2003 Chevrolet Silverado 2500 HD V8 6.0L Engine Knock Sensor & Harness Kit

Guaranteed to fit 2003 Chevrolet Silverado 2500 HD

99-03 GM Multifit Engine Knock Sensor, Harness, and Gasket Kit (4pc)
$ 109.95
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10% OFF
DIY Solutions
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Part 1AEEK00785

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Product Reviews
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4.61/ 5.0 33
Worth the price
May 12, 2018
Bought this to get both jobs out of the way at the same time. Everything went together smoothly, truck runs better. Couldn't ask for more than that!
Works great
October 10, 2018
Part seems to be of quality, solved my problem! 10/10 would order from 1A again
Monie saved
November 5, 2018
This kit...... Way cheep compared to my local part dealers. One knock sensor cost bout tha same as this whole kit. Every thing fit perfectly an fixed my problem. Its a blessin to have found 1aauto i will refer all my family and friends to check 1aauto fo there part needs.
Knock Sensor
January 8, 2019
The kit came in 2 packages, one package with the harness and the gasket, the other package had the sensors. One of the sensors came in defective. Had to pay the shop to do the labor twice.......not good
February 23, 2019
Great product. Fixed my truck great. Will be ordering from here again.
Exactly what I needed
June 8, 2019
This was the perfect kit to fix my knock sensor issue and I opted to replace both sensors and the harness because I only want to do that job once. Everything so far so good
Product review
July 16, 2019
This was a great product and the employes was great they helped me get all the right stuff for my truck and they work really hard to make sure it is right
Knock sensor
September 11, 2019
Bought my knock sensor from A1 for half the half price at any store and can't be any happier with them working great. Delivery was on time like the estimated. Just ordered more parts from them.
Auto parts
September 17, 2019
These parts are working great great service and the people were very helpful will be using again
November 5, 2019
I recommend this. Fits perfectly
January 15, 2020
I received my package on time as usual. The only problem is the cheap gaskets sent with it , they make a steel version that is superior to the factory ones .
Worked great
January 22, 2020
The parts arrived on time and where just what I needed.
April 5, 2020
Affordable, fast delivery, well packaged.
Super helpful
April 12, 2020
If you are getting the code p0332, itll be the engine knock sensor in the back, I got the kit because it is cheaper and over all easier. Thanks to 1aauto, I was able to get my truck running again and do the work myself with their super helpful videos
Vortech 6.0 knock sensors
April 14, 2020
Fit just like original and no more lights Protect them motors from a bad detonation
1a auto
May 16, 2020
Hands down best on parts and deliveries
Great parts, tutorials and service
July 28, 2020
I have had very good history with ordering from 1A auto, quality parts and service. 1A will be my goto
Worked as it should
August 12, 2020
everything fit perfectly. No more check engine light. I'm happy all the way around
Good value
August 17, 2020
the right parts for a great price
All parts and exactly fit only can find on 1Aauto
September 7, 2020
Parts amazing and fit like original Price amazing
Perfect fit, all the parts I needed
September 20, 2020
I compared this kit to others offered by other vendors. The ratings, price including shipping led me to purchase this kit from 1A. Delivery was quick, the items were well packed and everything fit exactly as they should. My Suburban runs better than it used to and I will be buying more stuff rom 1A in the future.
Knock sensors
October 24, 2020
The gaskets did not clip on right and one of the knock sensors twisted of in my block with barely any force once I began to tighten
Service was excellent
December 8, 2020
Ordered parts on Tuesday for repairs needed on Friday. Parts arrived on Wednesday and repairs were made. Could not ask for better service.
Good product
January 16, 2021
Good product came in fast. Just the intake gaskets are giving me trouble. Not sure if its the same as OME but would buy.
Engine knock sensor and harness
May 23, 2021
I purchased a engine knock sensor and harness. The knock sensors and harness kit was packaged well. The video on the website told me step by step how to fix the problem for my Chevy avalanche. The fix went well and all of the things I ordered fit and worked. The next day while driving to work my check engine light went off and the truck has been driving normally since. I was happy the knock sensor kit was affordable and good quality.
Would recommend for 99 5.3
June 13, 2021
Worked perfect for 99 5.3 Silverado. I would recommend this kit. Take your time and clean the intake and head surfaces.
Great parts!
July 11, 2021
Fit perfectly and my engine is running great!
July 16, 2021
Doing well so far ! Fast. Shipping Awsome price.
July 28, 2021
Parts are perfect fit very pleased
Knocks no more
August 16, 2021
Quality parts
Great part at great reasonable prices
October 12, 2021
Well I loved everything thing about the kit but after further diagnosis and to my surprise I had a bad battery connection so I didn't need the knock sensor kit but everything about the kit was cool thanks 1A auto for a cool kit and great parts you are my one stop shop
02 Chevy avalanche knock sensors
January 3, 2022
Ok, was a little worried after I replaced the knock sensors and harness. The check engine light was still on!!!!!!! Drove it around all day and still nothing. Woke up this morning and the light is gone. Went straight to the SMOG station. I'm guessing it had to reset itself. The light is off, my truck is running like a champ. Would recommend.
January 4, 2022
Everything came in and looked great and installed great but I still have the knock sensor codes
Customer Q&A
What brand is this product?
January 26, 2019
1A Auto's house brand parts are manufactured by various aftermarket companies specifically for us and built to your vehicle's exact OEM specifications.
January 26, 2019
Peter L
does this part come with everything shown in the picture and does it fit the Eighth dighit in the vin which is a T?
March 3, 2019
Amber H
The kit will include everything in the photo. If you can contact us directly with your VIN we can also confirm the fit for you.
March 3, 2019
Emma F
Does this kit have both knock sensors and the complete intake manifold gasket kit?
March 4, 2019
Ricky H
This kit includes both knock sensors, the knock sensor harness and the 3 gaskets for the intake manifold.
March 5, 2019
Andra M
Are these ac delco ?
May 6, 2019
Jalani G
1A Auto's house brand parts are manufactured by various aftermarket companies specifically for us and built to your vehicle's exact OEM specifications.
May 6, 2019
Christa R
I am wondering the description says (1) but clearly I need two knock sensors and gaskets as pictured . Does everything come in the kit that pictured???
July 28, 2020
Charles R
Thank you for inquiry. Yes this product will come just as pictures with two knock sensors!
July 28, 2020
Tim K
Yes it has 2 sensors a Y harness and gaskets
July 28, 2020
Frank S
Shouldn't I be using a.c. Delco knock sensors for my gmc yukon?
November 7, 2020
Anthony A
Only if you want to keep everything original on the car. The aftermarket products that they supply are just as good.
November 8, 2020
Frank P
DIY solutions brand parts are manufactured by various aftermarket companies specifically for us and built to your vehicle's exact OEM specifications. These parts should be able to work the same for your vehicle.
November 8, 2020
Emma F
Customer service


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This part will only fit a 2003 Chevrolet Silverado 2500 HD with these options.